122302993 has 2 divisors, whose sum is σ = 122302994. Its totient is φ = 122302992.

The previous prime is 122302991. The next prime is 122303011. The reversal of 122302993 is 399203221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119968209 + 2334784 = 10953^2 + 1528^2 .

It is an emirp because it is prime and its reverse (399203221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122302993 - 2¹ = 122302991 is a prime.

Together with 122302991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (122302991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61151496 + 61151497.

It is an arithmetic number, because the mean of its divisors is an integer number (61151497).

Almost surely, 2^122302993 is an apocalyptic number.

It is an amenable number.

122302993 is a deficient number, since it is larger than the sum of its proper divisors (1).

122302993 is an equidigital number, since it uses as much as digits as its factorization.

122302993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 122302993 is about 11059.0683604000. The cubic root of 122302993 is about 496.3778135627.

The spelling of 122302993 in words is "one hundred twenty-two million, three hundred two thousand, nine hundred ninety-three".